First of all, to figure out the meaning of the various logos, and then understand the connection method, and then learn to see the different styles of the map. Electric valve actuators can be divided into AC (AC110V, AC220V, AC380V) and DC (DC24V, DC12V) according to the power supply voltage. They are divided into active switch type, passive switch type, potentiometer type and regulation type according to the control mode. Through the different wiring diagrams below: 1, active switch type,…